Mr. Armentrout was a native of Washington County and son of the late Opie Armentrout Sr. and Marjorie Ferguson Armentrout.

He was a member of Sulphur Springs United Methodist Church.

Mr. Armentrout graduated from Sulphur Springs School and East Tennessee State University. He was owner of Sulphur Springs Bay Station, former Customer Service Representative for Kingsport Press, where he met his wife, and also worked for Southern Eastern Color Graphics.